package org.openfantasia.musica.instruments.jmusic;

import jm.audio.AudioObject;
import jm.audio.io.SampleOut;
import jm.audio.synth.Add;
import jm.audio.synth.Envelope;
import jm.audio.synth.Oscillator;
//import jm.audio.lang.*;

/**
 * A basic amplitude modulation synthesis instrument
 * which implements envelope and volume control
 *
 * @author Andrew Brown
 */

public final class AddInst extends jm.audio.Instrument {
	//----------------------------------------------
	// Attributes
	//----------------------------------------------

	/**
	 * the sample rate passed to the instrument
	 */
	private int sampleRate;

	/**
	 * the sample rate passed to the instrument
	 */
	private int channels;

	//----------------------------------------------
	// Constructor
	//----------------------------------------------


	/**
	 * Basic default constructor to set an initial
	 * sampling rate.
	 *
	 * @param sampleRate
	 */
	public AddInst(int sampleRate) {
		this.sampleRate = sampleRate;
		this.channels = 1;
	}

	//----------------------------------------------
	// Methods 
	//----------------------------------------------


	/**
	 * Initialisation method used to build the objects that
	 * this instrument will use.
	 */
	public void createChain() {
		Oscillator mod = new Oscillator(this, Oscillator.SINE_WAVE,
				this.sampleRate, this.channels);
		mod.setFrqRatio((float) 7.5);
		Envelope env = new Envelope(mod,
				new double[]{0.0, 0.0, 0.4, 1.0, 1.0, 0.8});
		//Value offsetAmp = new Value(this, this.sampleRate,
		//            this.channels, (float)0.7);

		Oscillator wt2 = new Oscillator(this, Oscillator.SINE_WAVE,
				this.sampleRate, this.channels);
		Envelope env2 = new Envelope(wt2,
				new double[]{0.0, 0.0, 0.5, 1.0, 1.0, 0.0});
		Add add = new Add(new AudioObject[]{env, env2});
		SampleOut sout = new SampleOut(add);
	}
}

